1 /* { dg-do run } */
2 /* { dg-options "-O2" } */
3 extern "C" void abort(void);
fT14 struct T1 {int a, b; virtual void f(){}};
5 struct T : T1 { struct T1 w;  int b; };
foo(struct T1 * p)6 void foo (struct T1 *p) { struct T *q = dynamic_cast<T*>(p); if (q->b != 2) abort (); }
7 /* We shouldn't kill the store to c.b, because foo uses it.  */
main()8 int main () { struct T c; c.b = 2; foo (&c); return 0; }
9